Abstract: This Paper mainly engages in the research of the real-time efficient signal processing algorithm through detailed analyses on the characteristics of spaceborne SAR echo signals.

• 文摘:通过对星载合成孔径雷达（SAR）原始回波信号的分析，推导出星载SAR快视成像算法（SPECAN算法），并分析了SPECAN算法的主要难点。